Download User Manual for Sunways Solar Inverters NT 2600, NT 4000 and NT

MANUAL
User Manual for Sunways
Solar Inverters NT 2600, NT 4000 and
NT 6000
180 mm
300 mm
510 mm
List of Contents
1.0
General information
1.1
Safety information
1.2
83
General safety information
84
Opening the unit
Sunways Solar Inverters
85
Scope of supply, inspecting the delivery
NT 2600, NT 4000 and NT 6000
86
Integration into the PV system
Design of the PV generator
2.0
Information on installation
2.1
Safety information
87
Standard components of a PV system
88
Protection concept
90
Electrical safety
Mechanical safety
2.2
79
Installation
91
Information on cleaning
93
Requirements on the place of installation
94
Electrical connection and cable entry
95
Grid connection
97
PV generator connection
98
Important Information
100
Communication connections
102
Connecting the sensors
EN
2.3
Commissioning
3.0
Information on operation
3.1
Monitoring and diagnosis
3.2
Sunways NT Monitor software
104
Switching the solar inverter on and off
106
Configurations
108
Structure and menu levels for configuration
111
Display
112
Data memory
113
General information
114
Initialising the remote modem
115
Connection and circuitry options
120
Configuring the interface cables
122
Sunways NT Monitor data acquisition
123
Operation of Sunways NT Monitor
3.3
Fault indications
125
Screen displays
3.4
Fault diagnosis
127
Indications, causes and remedies
3.5
Warranty terms and conditions
130
Warranty period
Terms and exclusion of liability for
solar inverters
80
4.0
Appendix
4.1
Subject and abbreviation index
133
Designation and description
4.2
Function and information index
135
Functional principle and explanations
138
Block diagram
140
Technical data
144
TYCO SOLARLOK connectors
146
Conformity and safety declarations
150
General exclusion of liability, rights,
registered trademarks
81
EN
1.0 General information
82
1.1
Safety information
General safety information
The User Manual contains safety hints.
All safety hints contained in this section
These are identified by a triangle with an
and throughout the User Manual must
exclamation mark.
be complied with at all times to guarantee
the user's safety. The described product
!
must not be operated if any mechanical
or electrical components are defective.
Before commissioning the system, we
strongly advise you to carefully read and
heed the instructions! Non-compliance
can have serious consequences, for example damage to the unit or other property
or physical injuries with possible loss of
life.
The solar inverter must be installed by a
trained, qualified electrician. The electrician must be approved by the competent
electricity board (EB).
The relevant tasks to be carried out are
identified by an additional adjacent
symbol in the respective chapter headings.
83
EN
!
Opening the unit
Before opening the cabinet, the unit must
always be disconnected from the grid and
from the PV generator.
The unit continues to conduct a hazardous
voltage internally and at the connection
sockets for ca. five minutes after disconnecting from the PV generator. The energy
storage capacitors are only fully discharged
after this period.
After disconnecting the unit from the grid
and from the PV generator, you must wait
at least five minutes before opening the
unit.
84
1.2
Sunways Solar Inverters NT 2600,
Inspecting the delivery
NT 4000 and NT 6000
The condition of our products is checked
Scope of supply
prior to delivery. Although our products
are carefully packed in recyclable packing,
· Sunways Solar Inverter in the NT series
transportation damages can still occur.
· Installation frame
These are generally the transport compa-
· Manual, setup, warranty card, CD-Rom
ny's responsibility.
with software
· 2 pairs of TYCO SOLARLOK connectors
Please inspect the delivered solar inverter
thoroughly!
If you discover any damage to the packing
or the solar inverter, please inform the
transport company immediately. Your
specialist dealer will be glad to assist you
if required. Any damages must always be
reported to the transport company in writing seven days after receipt of the goods
at the latest.
85
EN
Integration of the solar inverter into the
PV system
· Check your PV generator for soiling ca.
every three years. This occurs particularly
at the lower edge of the modules and
Design of the PV generator
forms a film, which even heavy rain cannot wash away. Decreases in yield can be
The technical data of the selected PV
prevented by cleaning with a wet cloth
generator must be within the specifica-
or a brush.
tion of the solar inverter (see Technical
Data). The Sunways NT Sundim design
· Avoid shading of individual modules or
program for the PV generator may be
solar cells in your system. This can result
helpful. Sunways NT Sundim is available
in heavy losses in yield.
on the enclosed CD or from our website, www.sunways.de.
Please take account of the following
points before planning your system:
· Pay attention to the skyward alignment
of the modules. You will obtain maximum yield in Central Europe with a
module inclination of 30° to the horizontal and a direct southerly alignment
of the generator field.
· The output of the cells decreases as the
module temperature increases. Install
your PV generator with adequate rear
ventilation.
86
Standard components of a PV system
Depending on the recommendations of
your electrician, your PV system will consist of the following components:
Standard components of the PV system
PV
(1)
(3)
(2)
PV generator switch:
Designed as DC load break cut-out to cut
off the PV generator from the solar inverter.
Dimensioning: min. 800 V, ≥ 16 A
Grid connection:
3-phase (Feed-in: 1-phase; grid monitoring:
3-phase)
87
(1) PV generator switch
(2) Irradiation sensor with
integrated temperature
sensor
(3) Mains fuse
(4) Energy meter
SUNWAYS
NT
PV
(4)
PC
Grid
EN
Protection concept
The following parameters are monitored
continuously and in parallel by the microcontroller and displayed on the screen:
· AFI error (ground fault)
· Overheating of the cooling element
· DC overvoltage
· AC undervoltage/overvoltage
In the event of a fault, the conversion is
immediately blocked and the grid relay
disconnected.
In addition, the following protective devices are provided on both grid and PV
generator side:
· Grid-side varistors
Protect the power semiconductors from
high-energy, time-limited voltage spikes on
the grid and provide for a reduction of
energy in the throttle in the event of grid
disconnection.
· Generator-side varistors
Thermally monitored varistors provide protection against atmospheric overvoltages
(e.g. due to remote strikes during storms).
88
2.0
89
Information on installation
2.1
Safety information
!
Electrical safety
Before opening the cabinet, the solar
inverter must be disconnected from the
grid and from the PV generator.
The solar inverter continues to conduct
a hazardous voltage internally and at the
connection sockets for the PV generator
for ca. five minutes after disconnecting
from the PV generator. The energy storage
capacitors are only fully discharged after
this period.
After disconnecting the solar inverter from
the grid and PV generator, you must wait
at least five minutes before opening the
solar inverter.
Mechanical safety
During installation, make sure that the
cables or connection lines fitted to the
solar inverter are securely laid and that
suitable mechanical cable supports
(cable ducts etc.) are used.
90
Information on cleaning
!
Before cleaning, disconnect the system
from the power grid by opening the grid
breaker (main fuse) and open the DC
switch on the PV generator, in order to
exclude the danger of electric shocks.
Use a soft, dry cloth to clean the system.
Never use corrosive, solvent-containing
or abrasive cleaners or polishes.
91
EN
2.2
Installation
The solar inverter must be installed by a trained, qualified electrician. A special tool is
➟
300 mm
Warm
Air
➟
necessary for installation. Please read this chapter very carefully.
150 mm
➟
300 mm
Cool
Air
➟
150 mm
92
Requirements on the place of installation
If installing the solar inverter in a switch
box, ensure adequate heat dissipation.
· Mechanical bearing capacity
During installation please bear in mind
The ambient temperature must not fall
that the solar inverter weighs 26 kg. The
below or exceed –25°C or +40°C.
installation base must be firm and capable
of continuously bearing the weight.
The solar inverter should not be exposed to
direct solar irradiation, so as to protect it
· Thermal interaction
from unnecessary external heating.
The installation base must consist of
flame-retardant material (e.g. no wood or
· Protection from damp and foreign bodies
plastic in the base; concrete and brickwork
The IP54 high protection class permits instal-
are suitable), as the heat sink emits tempe-
lation both inside and in roofed outdoor
ratures up to max. 85°C.
areas, but the solar inverter must not be
exposed to direct rain.
A minimum distance of 300 mm must be
maintained above and below the cabinet,
Make sure that the solar inverter cannot be
and 150 mm on right and left from other
exposed to foreign bodies (deposits of dust
units, cabinets, ceilings, cable ducts etc..
and dirt).
The solar inverter must be installed vertically, so as not to hinder adequate free
convection.
Several solar inverters must not be installed on top of each other, so as to prevent
reciprocal heating.
93
EN
Electrical connection and cable entry
If the solar inverter is fixed to the installation frame, the electrical connection can
be led through. The unit may only be ope-
!
ned by a qualified electrician. The cabinet
cover must first be released and removed.
For installation, please observe the
The following cable inlets are located on
instructions in the "Setup" leaflet!
the underside:
RS 232, RS 485,
Irradiation sensor with inte– DC
– DC
+ DC
Fig.: Inlets on the unit underside
+ DC
grated temperature sensor
AC wiring loom
cable
L1, L2, L3, N, PE
94
Grid connection
As line safety element in the grid feed-in
direction, we recommend a 3 x 25 A automatic cut-out. No consumption units must
!
be connected to the feed line from the
solar inverter to the automatic cut-out.
The solar inverter only feeds in via termi-
The grid connection of the solar inverter
nal L1.
must have 5 wires (L1, L2, L3, PE, N). Cable
cross-sections of 5 x 4 mm2 are recommen-
If several solar inverters are operated in
ded.
parallel, the feed-in phase L1 of the unit
must be evenly distributed over grid
phases L1, L2 and L3 (see figure below).
The solar inverter is connected to the
supply grid via the circuit board terminals
inside the unit.
Three-phase grid connection distributed over three units
L1 N L2 L3 PE
L1
L2
L3
N
PE
95
L1 N L2 L3 PE
L1 N L2 L3 PE
EN
You must use adequately dimensioned
· Connect cables L1, L2, L3, PE and N to
cable cross-sections in order to avoid a
the relevant circuit board terminal with
considerable increase in the grid impedan-
the help of a slot-head screwdriver (see
ce between the domestic distribution and
figure below).
the solar inverter. The terminal range of
the AC terminals is 0.5 to 6 mm2 for rigid
cables and 0.5 to 10 mm2 for flexible
cables. With a high grid impedance, i.e.
with a long line or too small a crosssection, the voltage increases at the grid
terminal during feed-in.
If the terminal voltage exceeds the permissible value, the solar inverter is disconnected from the grid.
· Tighten the M25 screw connection, so
Carefully perform the following steps:
that the cable cannot exert any mechanical
force on the circuit board terminal.
· Check that there is no voltage before
introducing the supply main into the
unit.
· Lead the 5-core AC cable (outer diameter 9 – 17 mm) through the M25 threaded cable gland.
96
PV generator connection
· Connection
The PV generator is connected via the
!
externally accessible, shock-proof TYCO
SOLARLOK connectors, which are enclosed
with the delivery. The TYCO SOLARLOK
connectors are designed for a cable cross-
· Preparation
section of 4 mm2 and must be crimped
Execute the DC cabling according to your
(see data sheet and connector assembly
electrician's system dimensioning. Check
with TYCO crimping tool on page 144).
each PV string for correct functioning
by performing a no-load voltage current
Connect the two right DC female connectors
and short-circuit current measurement.
with «+», the two left DC female connectors
with «-» of the PV generator (see figure
To achieve the necessary protection
against hazardous contact voltage during
the installation of PV systems, the positive and negative conductors must be kept
separate from the ground potential (PE).
Contactable, conductive parts of the PV
generator (e.g. metal frame, supporting
structure etc.) must be earthed (connected to PE).
Check that the generator is free from
ground faults.
Make the electrical connection to the
97
solar inverter.
below).
EN
Important information
!
· The direct PV generator voltage is available internally after connecting the PV
generator to the solar inverter via the
DC connectors and switching on the PV
generator switch!
· Please note that the input capacitors are
still charged even after switching off the
PV generator switch or removing the PV
generator plug connection!
· After disconnecting the AC and DC side,
the solar inverter still conducts voltage
for up to ca. five minutes!
· Therefore, wait for at least five minutes
until the internal voltage has dissipated.
Then you can work on the terminals!
Please note the general safety information on pages 83 and 84!
98
· The DC voltage can be up to 750 V. The
unit may only be opened by a qualified
electrician!
· Always disconnect the PV generator side
first by opening the PV generator switch,
and then the grid connection by isolating
the relevant mains fuse!
· If you do not have a PV generator switch
in your PV system, you must disconnect
the grid connection first of all by isolating the relevant mains fuse. However, a
«grid error» will be entered in the error
memory of the solar inverter!
· Disconnection of the PV generator by
removing the TYCO SOLARLOK DC connectors must never be performed under
load. In the event of non-compliance, the
connectors could be damaged by a strong
electric arc. In this case, the relevant connectors must be replaced!
99
EN
Communication connections
A 3-core cable is used for signal transmission via the RS 232, and a 2-core cable for
!
the RS 485 interface
Via the communication connections (interfaces), operating data can be retrieved
from the data memory with an external
computer and specific operating settings
made. Two interfaces are available:
RS 232 and RS 485.
The standard communication interface is
(Top figure) RS 232 and RS 485 interfaces
the RS 232 interface, which is installed in
with the signals (from left to right):
all current PCs and notebooks. This inter-
RS 485+, RS 485+, RS 485-, RS 485-, GND_G,
face allows you to establish contact with
TX, RX, GND_G, TX 2, RX 2.
your PC immediately, using a connecting
cable. The use of more than one solar
Attention: RS 485+ and RS 485- are dupli-
inverter or cable lengths of more than
cated. This means that the cable entry and
50 m requires the use of the RS 485
exit are additionally clamped.
interface.
The connections for the RS 232 or RS 485
interface supply cable are also made via
circuit board terminals and via the M12
screwed cable glands in the cabinet.
100
· Connection
Seal the unrequired cable glands by
Remove the cover of the solar inverter
placing a spare piece of cable in the gland
before connecting an interface cable. Pay
hole and tightening with the screw clamp.
heed to all safety hints (Pages 90 and 91).
Please heed the description on the
You will find the necessary cable terminal
Sunways NT Monitor software in
block with the RS 485+, RS 485-, GND_G,
Chapter 3.2.
TX, RX, GND_G, TX 2, RX 2 connections on
the board in the centre, bottom left
(see figure on the left). Note the following
terminal configuration:
RS 232: GND, RX, TX
RS 485: RS 485+, RS 485(The remaining signals, TX2 and RX2, are
only for service purposes.)
Use a small screwdriver. Press the orange
terminal. The terminal will open.
Insert the cable stripped to a minimum of
11 mm into the respective terminal hole.
Release the screwdriver. The cable is fixed
in the connection.
Once again, check that the cable connec101
tion is firmly located.
EN
Connecting the sensors
Before you connect an irradiation sensor,
you must remove the cover of the solar
!
inverter. Pay heed to all safety hints on
pages 90 and 91. Please note that the
inputs and outputs are not short-circuit
resistant.
· Optional irradiation sensor
The optional addition of an irradiation
The optional irradiation sensor with
sensor (type Si-01TC-T from Ing.-Büro
temperature sensor is connected to the
Mencke & Tegtmeyer ) with integrated
corresponding terminals at the bottom
PT-100 temperature sensor for tempera-
right of the middle board.
ture measurement enables recording of
the irradiation data and the corresponding module temperature in the cycle
of the internal data memory.
This additional measuring unit helps with
analysis of the system. On the basis of the
values, possible errors in the PV generator,
such as e.g. shading or failure of solar cells,
can be detected.
(Top figure) Connection block for
For demonstration purposes, the irradia-
temperature sensor cables with the signals:
tion sensor and the corresponding data
Temp, Solar, V+ and V-.
can be used to show how a PV system
functions. In conjunction with the
Sunways NT Monitor visualisation software, the stored data can be displayed.
102
Configuration of the cable terminal block:
Temperature sensor
measuring signal:
Temp
Solar radiation
measuring signal:
Solar
Positive supply, 5V:
V+
Supply, GND:
V-
Using a small screwdriver, press the orange
terminal. The terminal will open.
Insert the cable stripped to a minimum of
11 mm into the respective terminal hole.
Loosen the screwdriver. The cable is fixed
in the connection.
Once again, check that the cable connection is firmly located.
Seal the unrequired cable glands by
placing a spare piece of cable in the gland
hole and tightening the screw clamp.
103
EN
2.3
Commissioning
Switching the solar inverter on and off
Connect the solar inverter internally via
· Switching on
the ground cable (yellow-green) to the
When the solar inverter is mechanically
cabinet cover. (See also Setup, step 7)
installed and connected to the electrical
cables, the unit can be commissioned as
Put the cabinet cover on.
follows:
Screw it down tightly with the four
Switch the grid connection on through
screws on the front.
the external safety cutouts.
Do not place any objects (e.g. this manu-
Switch the PV generator voltage on by
al) on the cabinet of the solarinverter.
closing the PV generator switch. The solar
Free ventilation behind the solar inverter
inverter will start up with adequate
must be able to take place unimpeded.
PV power. If the PV input voltage is high
enough, the solar inverter will begin ope-
If the unit is installed in the open air,
ration and feed the solar energy into the
please take special care to ensure that the
electrical grid. You can see the operation
screwed cable glands are properly sealed
on the display. The current feed-in power
and that the cabinet cover is precisely
is shown here.
located.
The solar inverter is supplied by the PV
generator. The solar inverter switches on
in the morning and off again in the evening. The relevant switching on and switching off thresholds are defined for the
PV generator. If the solar energy is not
sufficient to supply the electronics, several
switch-on attempts may have to be made
104
in cloudy weather. This is normal, and does
not affect either the yield or the mode of
functioning of the solar inverter.
!
· Switching off
Open the main switch for the PV DC
Disconnect the PV generator side first by
voltage and the mains fuse as described
opening the PV generator switch, and
above. After a waiting period of at least
then the grid connection by isolating the
five minutes, the solar inverter will be
relevant mains fuse.
voltage-free.
If your PV system does not have a PV
Disconnection of the PV generator by
generator switch, you must disconnect
removing the TYCO SOLARLOK connectors
the grid connection first of all by isolating
must never be performed under load. In
the relevant mains fuse. When you do
the event of non-compliance, the connec-
this, a "grid error" will be entered in the
tors could be damaged by a strong electric
error memory of the solar inverter.
arc. In this case, the relevant connectors
must be replaced!
If the solar inverter is to be completely
disconnected (e.g. removal) from the PV
Remove the cabinet cover.
system, reconfigured or extended, the
105
cabinet cover must be removed. Pay heed
Check that the grid connection terminals
to all safety hints (Pages 90 and 91).
are voltage-free.
EN
Configurations
However, language setting, LCD contrast
and total energy offset (only to be used
The solar inverter is basically configured
in the event of replacement) must be
with the Sunways NT Monitor program,
configured directly on the unit. If you wish
using a laptop or PC (see enclosed CD).
to configure the solar inverter without
an external laptop or PC, or to change the
In this regard please read the chapter
language setting, please follow the
«System Monitoring and Diagnosis» and
instructions below:
«Sunways NT Monitor».
!
Disconnect the solar inverter by isolating
the mains fuse from the grid. The direct
configuration of the solar inverter occurs
with PV operating voltage present!
Please note that the unit is under DC
voltage for configurations via the keys.
Danger to life!
Please observe all essential regulations for
«Working under voltage»!
106
This is the only exception for which work
· Address of the solar inverter: address
may be performed on the open unit under
«1» is stored in the memory at the
voltage!
factory. In the case of several solar inverters, consecutive numbering must be set.
Remove the cabinet cover to carry out the
For three solar inverters e.g. the addres-
configuration.
ses «1», «2» and «3».
· Date
The following settings can be performed
· Time
using the illustrated keys:
· Language (German or English)
EN
PLUS
107
MINUS
ESC/CUR UP/DWN
Fig.: The setting keys are located beneath the display.
RST
Use insulating material to press the keys
resets the data recording program to its
(e.g. a plastic rod). Avoid direct contact
original status. This does not affect the
with the printed circuit board, so that the
operation of the solar inverter.
electronics cannot be damaged by electrostatic charging. The reset key (RST) only
Starting from the current display on the
Structure and menu levels for configuration
PERFORMANCE
AND
OPERATING DATA
ESC
CUR
UP/
DWN
▲
START
SOLAR INVERTER
ADDRESS
UP/
DWN
+
ADDRESS
1 ... 99
DATE
+/–
UP/
DWN
UP/
DWN
UP/
DWN
+
–
DAY
TIME
+/–
UP/
DWN
+
–
+
MONTH
YEAR
+
–
ESC
CUR
ESC
CUR
+
HOURS
UP/
DWN
–
ESC
CUR
ESC
CUR
ESC
CUR
+/–
–
MINUTES
–
ESC
CUR
+
SECONDS
–
ESC
CUR
SAVE
108
screen, you can reach the next menu level
with the UP/DOWN key. The illustrated
structure facilitates settings on the menu
levels. Then save your settings by pressing
the ESC/CUR key.
LANGUAGE
+/–
UP/
DWN
UP/
DWN
+
ENG./GER.
LCD CONTRAST
–
UP/
DWN
+
CONTRAST –
+/–
SOFTWARE
VERSION
TOTAL POWER
OFFSET
+/–
UP/
DWN
+
k Wh
ESC
CUR
INCREMENT
(100 OR 1)
109
UP/
DWN
UP/
DWN
–
3.0
Information on operation
110
3.1 Monitoring and diagnosis
Display
The dot matrix LCD display is integrated
into the cabinet of the solar inverter so
that it is easily visible. The display consists
of 16 characters and 2 lines. The top line 1
shows the current feed-in power of the
solar inverter. The bottom line 2 outputs
EN
operating data. The data can be displayed
in the German or English language.
Line 1
Current fed-in power
Power
kW
Line 2
AC voltage
U-AC
V
DC voltage
U-DC
V
Daily yield in Wh
W_TAG
Wh
Total yield in kWh
W_GES
kWh
Irradiation in W/m2 (*)
SOLAR
Wm2
PV generator temperature in °C (*) TEMP-PAN
Time
(* if the optional irradiation sensor with
integrated temperature sensor is connected.)
111
C
Data memory
· Storage of accumulated daily work in
Wh and of 40 daily values in the recircu-
Your solar inverter is equipped with an
internal data memory as standard. This
data memory provides you with a detailed
lating storage and successive overwriting
of values
· Storage of accumulated monthly work in
view of the mode of functioning and the
kWh and of 13 monthly values in the
relevant values of your solar power supply
recirculating storage, then overwriting
at all times. You can access these data
of values
with the help of the NT Monitor software
· Storage of faults with max. ten values,
described below. The following measured
then successive overwriting of values
values can be determined:
Please note that all displayed performance
· DC voltage
data are displayed with a nominal measu-
· AC voltage and AC current (power calcu-
ring accuracy of maximum 5 %. The energy
lation)
· Irradiation and module temperature
counter of your EVU should be used as
absolute reference for the fed-in energy.
(if a sensor is connected)
· Time and date
The following values can be accumulated,
stored and successively overwritten:
· 15 minute values for AC current, DC and
AC voltages, irradiation and temperature
· 120 times storage of 15-minute average
values in the recirculating storage;
storage depth: three days on average,
then overwriting of values
112
3.2
Sunways NT Monitor software
be transferred via a modem. We recommend using two external analogue
General information
modems made by ACER. If other modems
are used, the functional reliability cannot
The Sunways NT Monitor visualisation soft-
always be guaranteed.
ware was developed for PV system monitoring and configuration of the solar inverter
The modem (remote modem) installed
using PC. It is contained on the enclosed CD
in the solar inverter must be initialised
and can also be downloaded free of charge
prior to installation with the help of the
on the Internet from www.sunways.de.
Sunways NT Monitor software. Note the
System prerequisites are:
"Help" function in the program in this
regard.
· Intel Pentium from 100 MHz or higher
· Microsoft Windows 95/98/2000/NT
The second modem (local modem) is
· At least 6 MB free hard disk storage space
connected to the RS 232 interface of your
· At least 16 MB main memory
PC. This modem must not be initialised.
· VGA monitor with at least 800 x 600
(120 dpi) resolution
Different interface cables are required,
depending on the type of connection.
All measured values can be transferred
These are included in the accessories.
to a PC and visualised with the Sunways NT
Monitor software. Online, fault, minute,
Up to 99 solar inverters can be monitored
daily and monthly values are available.
and read out by means of a connection
via the RS 485 interface.
For connecting to your PC, Sunways solar
113
inverters in the NT series are equipped with
If the data are read out via the RS 485
the RS 232 and RS 485 interfaces as stan-
interface and converted to RS 232 with
dard. In the case of larger distances bet-
an interface converter, we recommend
ween PV system and PC, the data can also
the converter type «I-7520 Converter»
EN
from ICP-Deutschland, (available from your
specialist dealer), which will guarantee
· Attention! Do not initialise the local
modem!
reliable data transfer.
· The remote modem is now initialised
The addresses of the solar inverter must
so that it automatically accepts a connec-
be input in the solar inverter using the
tion after two rings and connects at
Sunways NT Monitor software or input
9600 Baud.
directly with the keys illustrated on
page 107.
Initialising the remote modem
If a remote modem is installed in the solar
inverter, it must be initialised using a PC
and the Sunways NT Monitor software.
· Connect the powered remote modem to
the PC via the COM port. Use the interface cable provided with the modem for
this purpose. Start the Sunways NT
Monitor and set «Acer Modem» under
the «Settings/Remote Modem» menu.
· Click «Perform initialisation» and wait
until the scroll bar has come to an end.
The modem can now be switched off
and connected to the solar inverter via
the RS 232 interface.
114
Connection and circuitry options
INVERTER
(1)
Individual PV system with maximum distance of 50 m between solar inverter and PC
PV
RS 232
PC
Yellow
Green
Brown
Connection to PC via RS 232
A single solar inverter can be directly connected
to a PC via the RS 232 interface
RS 485+
RS 485+
RS 485–
RS 485–
GND_G
TX
RX
GND_G
TX 2
RX 2
Stripped length: 11 mm
Jumper JP400: open
(1) This connection can be used to read out
an individual solar inverter if the distance
from the PC used does not exceed 50 m. To
do this, cable type A is stripped to 11 mm
and connected to the solar inverter.
115
INVERTER
(1)
(2) Individual PV system with modem for remote inquiry
PV
RS 232
MODEM
MODEM
RS 232
PC
Green
Yellow
Brown
Connection to modem via RS 232
When connecting an individual solar inverter,
the remote modem is connected directly to
the RS 232 signal.
RS 485+
RS 485+
RS 485–
RS 485–
GND_G
TX
RX
GND_G
TX 2
RX 2
Stripped length: 11 mm
Jumper JP400: open
(see page 121)
(2) To install the remote inquiry of an individual solar inverter, the RS 232 signal can
be routed directly from the solar inverter
to the remote modem.
Cable type B is used for this purpose. For
the RS 232 connection between solar inverter and modem, a cable length of 50 m
should not be exceeded.
116
PV
INVERTER
(1)
PV
INVERTER
(2 to 99)
(3) PV system for 2 to 99 solar inverters with interface converter (I C)
RS 485
IC
RS 232
PC
RS 485+
RS 485+
RS 485–
RS 485–
GND_G
TX
RX
GND_G
TX 2
RX 2
RS 485+
RS 485+
RS 485–
RS 485–
Connection to PC via RS 485 / RS 232
117
In order to connect several solar inverters to a
PC, the RS 485 signal is looped through from
inverter to inverter, until it is led into the interface converter. From here, the RS 232 signal is
conducted to the PC. Jumper JP400 is connected
to the solar inverter that is furthest away
from the interface converter. It must be open
for all other solar inverters.
Stripped length: 11 mm
Jumper JP400: see above
(3) Up to 99 solar inverters can be con-
the interface converter and the furthest
nected together and read out using this
solar inverter. The individual solar inverters
connection. In this case, there is a maxi-
are connected together via the RS 485
mum cable length of 500 m between
interface.
The signal is looped through all units. Two
The interface converter generates an
«RS 485+» terminals and two «RS 485-»
RS 232 signal. It is connected to the PC with
terminals are located on each terminal
the standard modem cable type D. Jumper
block. This means that the signal can be led
JP400 must be closed at the solar inverter
into the solar inverter at one terminal and
that is furthest away from the interface
out of the solar inverter at the other termi-
converter. For all other solar inverters it
nal. The RS 485 signal is led out of the last
must be open. An address must be alloca-
solar inverter in the series into the interface
ted, to enable identification of the indivi-
converter using the following configuration:
dual solar inverters. This is described in
«RS 485+» to «DATA+» and «RS 485-» to
Chapter 2.3 Commissioning, under
«DATA-».
«Configuration».
(4) PV system for 2 to 99 solar inverters with interface converter (IC) and modem for
PV
INVERTER
(1)
PV
INVERTER
(2 to 99)
remote inquiry
RS 485
IC
RS 232
MODEM
MODEM
RS 232
PC
118
RS 485+
RS 485+
RS 485–
RS 485–
GND_G
TX
RX
GND_G
TX 2
RX 2
RS 485+
RS 485+
RS 485–
RS 485–
Connection to modem via RS 485 / RS 232
(4) If several solar inverters are to be connected to the remote inquiry, then the
individual inverters are connected together
by means of the RS 485 signal, as when
reading out several units locally. This signal
is converted by the interface converter
into the RS 232 signal, from where it is led
to the modem using cable type C. Jumper
JP400 must be closed at the solar inverter
that is furthest away from the interface
converter. For all other solar inverters it
must be open. An address must be allocated, to enable identification of the individual solar inverters. This is described in
Chapter 2.3 Commissioning, under
119
«Configuration».
In order to connect several solar inverters to
the remote monitoring, the interface converter
is connected directly to a modem via RS 232.
Jumper JP400 is connected to the solar inverter
that is furthest away from the interface converter. It must be open for all other solar inverters.
Stripped length: 11 mm
Jumper JP400: see above
Configuring the interface cables
Cable type A
Female
connector to PC,
9-pole
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
TX
RX
Signal cables
to the solar inverter
on X400
GND
Cable type B
Connector
to modem,
9-pole
RX
TX
Signal cables
to solar inverter
on X400
GND
120
Cable type C
Connector
to modem,
9-pole
6
7
8
9
1
2
3
4
5
Locating jumper JP400 in the Sunways
Solar Inverter
Please check the correct position of jumper JP400, depending on your selected
communication circuit. You will find this
jumper above the communication connections (see figure opposite).
121
5
4
3
2
1
9
8
7
6
Connector
to interface
converter
Sunways NT Monitor data acquisition
· Monthly values
Date in the solar inverter, fed-in since
· Online values
commissioning and monthly energy.
DC voltage (U_DC), AC voltage (U_AC),
AC current (I_AC), date, time, AC power,
Representation as graphic or print; Option
module temperature, module irradiation,
of saving as bitmap; Zoom-in of graphics
«fed-in today», «fed-in since commissio-
possible. Individual solar inverters can be
ning», error.
called up with the scroll menu.
· 15 minute values
· Fault data
DC voltage (U_DC), AC voltage (U_AC),
Date, time and type of fault (for the
AC current (I_AC), date, time, temperature,
last ten faults)
irradiation, «fed-in in 15 minutes», accumulated daily total of all 15 minute average
· Calendar
values.
Date and time in the solar inverter
Representation as graphic or print; Option
· Modem
of saving as bitmap; Fade-in of graphics
Selection of the modem type and input
possible. Individual solar inverters can be
of the address signal
called up with the scroll menu.
If required, detailed information on
· Daily values
Sunways NT Monitor can be found under
Date and daily energy in the solar inverter.
the «Help» menu item in the program
software.
Representation as graphic or print; Option
of saving as bitmap; Zoom-in of graphics
possible. Individual solar inverters can be
called up with the scroll menu.
122
Operation of Sunways NT Monitor
solar inverter in the top section of the
right window half and the new number
After installing the Sunways NT Monitor
beneath it. The numbering is changed
software on your PC, you can start the
by clicking on the «Make change» key.
program. The word «Sunways» will now
appear on your screen.
Exit the window with the «Close» key.
You will go back to the «Setting» menu.
On the menu bar at the top, you will see
the four menu areas «Program», «Data»,
You can set the interface configuration
«Settings» and «Help».
with your PC by clicking on the «Connection» key.
· Setting menu
By clicking on the «Remote modem»
To configure your solar inverter, open the
key, you can configure an optional modem
«Settings» menu by clicking on it with
(e. g. if you wish to retrieve data by
the mouse, and click on the «Inverter» key.
remote inquiry).
Enter the address number that you have
defined for your solar inverter next to
«Inverter». For example, the number «1»
· Data menu
for one solar inverter. In the case of
In the «Data» menu, you can call up
several units, select «all».
the current accumulated performance and
energy of the solar inverter by clicking
Then enter the desired date and time. The
on the «Online» key.
settings are transferred to the solar inverter by clicking on the «Make change» key.
You can display the data measured at
15 minute intervals by clicking on the
123
If you are using several solar inverters and
«Minute values» key. The data and values
wish to make a change to the numbering,
are graphically visualised by clicking on
you can enter the old number of the
the «Graphic representation» key.
EN
You can call up «Daily values» and
«Monthly values» in the same way, by
clicking on the respective keys.
Exit the window with the «Close» key.
You will return to the «Settings» menu.
· Help menu
You will find further helpful information
on operating the Sunways NT Monitor
software in the «Help» menu.
124
3.3
Fault indications
Your solar inverter operates fully automati-
Display for AC undervoltage:
Line 1
Error: UAC_3
Line 2
Undervoltage
cally and maintenance-free. However, if
operational faults occur due to external or
internal causes, these will be displayed on
the screen.
· AC over/undervoltage (1-phase)
· AC over/undervoltage (3-phase)
Your solar inverter monitors the limits of
Your solar inverter monitors the limits of
minimum and maximum permissible grid
minimum and maximum permissible
voltage in the feed-in phase. If these limits
3-phase grid voltage. If these limits are
are exceeded, the solar inverter will switch
exceeded (Umin = 184 V, UN = 230 V,
off and will only start up again when the
Umax = 264 V), the solar inverter will switch
voltage value is within the limits.
off and will only start up again when the
voltage value is within the limits. The
Display for AC overvoltage:
fault cut-out can be triggered even by very
125
brief overvoltages and undervoltages.
Line 1
Error: UAC_1
Display for AC overvoltage:
Line 2
Overvoltage
Line 1
Error: UAC_3
Line 2
Overvoltage
Display for AC undervoltage:
Line 1
Error: UAC_1
Line 2
Undervoltage
EN
· DC overvoltage
Display for AFI error protection:
A maximum no-load voltage of 750 V is
permitted for the PV generator.
Line 1
Error: AFI
Line 2
Residual current
All components of the DC input are adequately dimensioned with a safety factor.
If the threshold is exceeded, the solar
inverter stops the feed-in and a «DC overvoltage error» is displayed.
· Overheating fault
Your solar inverter is designed for an
Display for DC overvoltage:
ambient temperature of up to +40°C.
When the maximum upper temperature
Line 1
Error: UDC
Line 2
Overvoltage
threshold is reached, the feed-in is stopped. When the heat sink temperature
has decreased, the solar inverter starts
up again automatically.
· AFI residual current
Line 1
Error: TEMP
Line 2
Overtemperature
The AFI residual current (insulation error,
ground fault) is displayed if a residual
current has occurred in the PV system and
the solar inverter has subsequently disconnected from the grid. Ground faults are
monitored on both the AC and DC side
(universal current-sensitive FI). If this error
message is displayed, the entire PV system
must be checked for insulation errors. The
AFI residual current operated device only
monitors the phase into which feed-in
occurs.
126
3.4
Fault diagnosis
Fault display
Causes
Remedies
Overtemperature
The maximum permissible
The installation location is not suitable.
ambient temperature of
Please find another installation location.
40°C has been exceeded.
The necessary air circulation
Clean the solar inverter if dirt is
was not taken into account
impeding the cooling unit.
during installation.
Objects have been stored on
Remove the objects.
the heat sink, impeding free
convection.
127
UDC
The maximum DC voltage
Check the dimensioning of your
Overvoltage
has been exceeded.
PV generator.
Too many modules are con-
Reduce the number of modules and
nected in series.
re-commission the system.
Fault display
Causes
Remedies
UAC_1
The grid voltage is too low
The solar inverter monitors the limits of
UAC_3
or too high.
the minimum and maximum permissible
AC under/over-
3-phase grid voltage. If the values exceed
voltage
or fall below these limits (Umin = 184 V,
Umax = 264 V), the solar inverter switches off and only restarts automatically
when the voltage value has returned
within the limits. The fault cut-out can
be triggered even if the values only
exceed or fall below the limits very
briefly (up to ca. 1 ms).
Ask your electricity board about grid
stability and design.
The cable cross-section in
Check the format of your grid connection
the AC feed line to the solar
(energy counter) and the grid feed-in
inverter is too small.
point to your electricity board.
Your solar system feeds into
a spur line, which is inadequately dimensioned.
128
Fault display
Causes
Remedies
AFI
The AFI error is displayed if
The entire PV system must be checked
Residual current
a residual current has occur-
for insulation errors.
red in the PV system and
the solar inverter has subsequently disconnected
from the grid.
Incorrect time,
Have the battery (button cell) replaced
by an expert.
in Sunways NT
The battery is located on the LCD display
Monitor with
board.
incorrect time
data.
129
The battery is empty.
date are stored
3.5
Warranty terms and conditions
Sunways AG must be allowed the necessary
time to eliminate the defect. Sunways AG
will endeavour to eliminate the defect
· Warranty period
within 14 days of receipt of the unit. If this
The warranty period is five years from
is not possible, the customer will be infor-
purchase of the solar inverter by the end
med of the reason and the time when the
user. Please complete the enclosed war-
defect will be eliminated will be specified.
ranty card and return it to Sunways AG.
Please keep the original invoice with the
Please preserve the original packing,
date of purchase in a safe place. This will
even after expiry of the warranty period.
be required as proof, in addition to the
Carriers may only accept solar inverters in
warranty card, in the event of a claim.
transport-safe original packing. Therefore,
please inform us before collection if you
· Conditions
have lost the original packing. We will
During the warranty period, the solar
gladly provide you with new packing for
inverter will be repaired free of labour
a charge.
and material costs in Constance. Installation costs are borne by the customer,
unless agreed otherwise. The completed
warranty card must be sent to Sunways
AG, Constance within seven days of
purchase.
Please notify us of any warranty claims
by telephone (technical hotline:
+49 7531 99677577), stating your name,
address, telephone and serial number,
and your email address if applicable.
130
· Exclusion of liability
Warranty claims and liability are excluded
for direct or indirect damages due to:
· Interventions, modifications or attempted
repairs
· Inadequate ventilation
· Force majeure (e.g. lightning strike, water
damage, vandalism, fire, overvoltage,
thunderstorms etc.)
· Inappropriate transport
· Non-observance of pertinent regulations
or incorrect installation or commissioning
· Leakage of overvoltages from the varistors on the DC side on the PV generator
More extensive or other claims for direct
or indirect damages, particularly claims
for damages, including those arising from
positive contract violation, are excluded,
unless legally prescribed.
131
EN
4.0
Appendix
132
4.1
Subject and abbreviation index
Designation
Description
AC
Alternating Current: grid current
AFI, RCD
Operator protection in the event of residual currents
AFI: Universal Sensitive Residual Current
RCD: Residual Current Device
EN
DC
Direct Current
PV generator side of the solar inverter
EMV
Electromagnetic Compatibility
EB
Electricity Board
INDC
Current used to operate the solar inverter
IP
Identification of class of protection against external
environ-mental influences (penetration of water and
mechanical foreign bodies)
133
kW
Kilowatt
LCD
Liquid Crystal Display
MPP
Maximum Power Point
Designation
Description
Grid impedance
AC resistance of grid, impedance
PNDC PNAC
DC and AC rated power:
Power which the inverters can permanently consume
(DC) or emit (AC).
PT
Temperature sensor
PV
Photovoltaic
PV generator switch
DC load break switch to cut off the PV generator from
the solar inverter
UNDC
Voltage: specifies the normal operating voltage at which
the solar inverter is operated
134
4.2
Function and information index
· DC and AC filters
The DC and AC filters are specially designed
Functional principle and explanations
EMC filters, which are integrated as direct
components on the board. They guarantee
The electrical energy of the PV generator
compliance with the EMC limit values on
is buffered by a capacitive storage, from
the AC side and on the PV generator side.
where it is fed into the public grid via a
High-frequency emissions are avoided by
solar inverter synchronised with the grid,
the filters on the PV generator side.
with an ideal phase angle of [cos phi = 1].
· Differential measurement
A sinusoidal current with a very low harmo-
The generator current and the voltage are
nic distortion is injected into the public
recorded via a current transformer and a
grid by the current injection inductor. This
differential measurement. The values are
improves the grid quality.
important input values for the regulation
and setting of the correct working point.
Thanks to the
HERIC®
technology (patent
applied for) in the self-commutated
· Solar inverter with HERIC® technology
Sunways Solar Inverter, the hysteresis losses
The heart of the solar inverter with the
in the current injection inductors that
power semiconductors serves for conver-
occur in conventional solar inverters and
sion of the current from direct into
the switching losses in the semiconductors
alternating current. Peak efficiencies are
are considerably reduced. Consequently,
achieved, thanks to the HERIC® techno-
Sunways Solar Inverters achieve a peak
logy. The switching frequency (PWM) is
efficiency during conversion. The concept
16 kHz.
of the Sunways Solar Inverter is completed
by a rapid MPP control, which maintains
the MPP point with a very high adaptation
efficiency.
135
EN
· Grid protection
· Sensor interface
The grid protection is a powerful relay
An irradiation sensor with integrated
which ensures reliable grid disconnection
temperature sensor can be optionally con-
in the case of error and for night switch-
nected to the relevant interface. This
off. This relay fulfils the requirement for
allows first time users to quickly grasp the
trouble-free grid disconnection.
mode of functioning of their PV system,
and facilitates monitoring of the PV
· Microcontroller
system for professionals.
As well as system management, the
efficient microcontroller undertakes
· AFI universal sensitive residual current
additional tasks, such as saving data
device
and communication.
The universal (DC and AC) sensitive residual current device (AFI) monitors the solar
· LCD display
system for residual currents. To do this,
Important information for the operator
it disconnects the solar inverter from the
about the system operation and status is
grid by means of a relay as soon as a resi-
displayed on an LCD display of 2 x 16
dual current occurs on the PV generator
characters.
side or on the AC side in the solar inverter.
After cutoff by the relay and as soon as
· RS 485 and RS 232 interfaces
the residual current has stopped, the AFI
The two RS 485 and RS 232 interfaces
automatically attempts to reconnect the
installed as standard serve for communi-
solar inverter to the grid. The AFI of the
cation with the solar inverter and the PV
Sunways solar inverter complies with
system. The system can be visualised via
standard DIN V VDE V 0126-1-1.
the Sunways NT Monitor software.
In addition, the AFI of Solar Inverters NT
2600, NT 4000 and NT 6000 has an absolutely time-independent effective value
136
cutoff threshold, which is dependent on
the performance class. The NT 2600 model
is switched off at an absolute residual current of 130 mA, the NT 4000 model at an
absolute residual current of 200 mA and
the NT 6000 model at an absolute residual
current of 300 mA. The AFI triggers within
< 0.2 seconds.
· MPP control
The solar inverter has a rapid MPP control,
which maintains the MPP point with a very
high adaptation efficiency. If surplus power
is provided by the PV generator, the solar
inverter limits this by shifting the working
point of the characteristic curve of the PV
generator, so as not to exceed the maximum permissible AC feed-in power in
accordance with VDEW.
137
EN
Block diagram
=
PV-GENERATOR
DC-FILTER
HERIC®
CAPACITIVE STORAGE
≈
TEMP CONTROLLER
IDC
UDC
DIFFERER. MEASUREMENT
RADIATION
AND
TEMPERATURE
CONTROL
DATAPRO
DATA
RT
IRRADIATION SENSOR AND
TEMPERATURE SENSOR
(OPT.)
RS 232
RS 485
MICROCONTROLLER
138
CURRENT IMPRESSION
INDUCTOR
AFI
AC FILTER
GRID PROTECTION
RESIDUAL CURRENT
AFI
AND
CESSING
IAC
UAC
DIFFERER. MEASUREMENT
LCD-DISPLAY
(2 LINES)
139
KEYBOARD
GRID
L 1, L 2, L E
N, P E
Technical data
Model
Solar Inverter NT 2600
Recommended PV generator power
1500 bis 2750 W
DC Rated input power
Stand-by consumption
Night-time consumption
AC energy generated from
Nominal voltage
UMPP voltage range
Open-circuit voltage
Switch-on voltage
Switch-off voltage
Maximum current
Nominal current
Number of inputs
Maximum efficiency
European efficiency (weighted)
HERIC® topology
AC Rated continuous output power Pn
Maximum power Pp
Nominal frequency
Grid voltage
Grid voltage tolerance range
Nominal current
Max. current
Distortion factor at Pn
Reactive power factor (cos phi)
Output current
2300 W
9W
< 0.005 W
15 W
400 V
350 ≤ UMPP ≤ 650 V
750 V
410 V
340 V
7A
5.75 A
2 (with adapter: 4)
97 per cent
96.5 per cent
yes
2200 W
2200 W
50 Hz +/- 0.2
230 V
- 20 to +15 per cent
9.6 A
9.6 A
< 3 per cent
~1
sinusoidal
140
141
Solar Inverter NT 4000
Solar Inverter NT 6000
2000 bis 4125 W
4000 bis 6250 W
3400 W
9W
< 0.005 W
15 W
400 V
350 ≤ UMPP ≤ 650 V
750 V
410 V
340 V
10 A
8.5 A
2 (with adapter: 4)
5200 W
9W
< 0.005 W
15 W
400 V
350 ≤ UMPP ≤ 650 V
750 V
410 V
340 V
15 A
13 A
2 (with adapter: 4)
97 per cent
96.4 per cent
yes
97 per cent
96.3 per cent
yes
3300 W
3300 W
50 Hz +/- 0.2
230 V
- 20 to +15 per cent
14.3 A
14.3 A
< 3 per cent
~1
sinusoidal
4600 W
5000 W
50 Hz +/- 0.2
230 V
- 20 to +15 per cent
20 A
21.7 A
< 3 per cent
~1
sinusoidal
Grid voltage monitoring
Earth fault protection
Output characteristic
Grid connection fuse layout
Required number of grid connection phases
Number of feed-in phases (230 V single-phase)
threephase
RCD (universally sensitive)
current source
16 A
3
1
Data interfaces
Sensor interfaces
Display
RS 232, RS 485
irradiation, temperature
LCD, 2 x 16 characters
System of protection against envir. influences
Relative air humidity, max.
Cooling
Ambient temperature (Celsius)
Dimensions (height x width x depth)
Weight
Noise development
Standard warranty period (option)
IP 54
95 per cent
free convection
- 25°C to 40°C
510 x 300 x 180 mm
26 kg
silent (< 35 dB (A))
5 years (10 years)
142
143
threephase
RCD (universally sensitive)
current source
25 A
3
1
threephase
RCD (universally sensitive)
current source
25 A
3
1
RS 232, RS 485
irradiation, temperature
LCD, 2 x 16 characters
RS 232, RS 485
irradiation, temperature
LCD, 2 x 16 characters
IP 54
95 per cent
free convection
- 25°C to 40°C
510 x 300 x 180 mm
26 kg
silent (< 35 dB (A))
5 years (10 years)
IP 54
95 per cent
free convection
- 25°C to 40°C
510 x 300 x 180 mm
26 kg
silent (< 35 dB (A))
5 years (10 years)
TYCO SOLARLOK connectors
!
The TYCO SOLARLOK connectors
are only approved for connection to
permanently laid cables!
Fig.: Manual crimping tool for assembly of
They must not be disconnected
TYCO SOLARLOK connectors
under load!
The circuit must be interrupted at
a suitable point! The cables must be
provided with a suitable adhesive
label close to the TYCO SOLARLOK
connector!
The TYCO SOLARLOK connectors must
always be disconnected from other
voltage sources on all sides during
assembly, in order to protect against
electric shock.
144
Any type of soiling (dust, humidity etc.)
cables of 7.2 to 8.0 mm sheath diameter).
will negatively affect the operation of the
The seal must be matched to the sheath
system over the desired period of use.
diameter of the cables used.
This applies particularly for the usability
of the seals and crimping of the contacts.
The utmost care must therefore be taken
The following sequence must be observed
to work cleanly during installation.
for assembly of TYCO SOLARLOK connectors:
Different circular contacts are used for
different conductor cross-sections for the
1. Strip the voltage-free cable by 8 mm.
TYCO SOLARLOK connectors. The correct
2. Crimp on the circular contact.
tool insert must be used, depending on
3. Push the cable gland, clamping piece
this cross-section. The enclosed TYCO
SOLARLOK connectors are equipped with
circular contacts for a cable cross-section
housing.
of 4 mm. The enclosed seals have internal
5. Screw on the clamping nut.
dimensions of 6 (for cables of 5.3 to 6.2
6. Tightening torque of the threaded cable
mm sheath diameter) and 8 mm (for
145
and seal onto the cable.
4. Engage the contact in the connector
gland is 1.5 Nm.
EN
Declaration of Conformity as per EG Low Voltage Guidelines 73/23/EWG,
attachment III B
We herewith declare that the following product including the required accessories has
been manufactured according to the EG guidelines 73/23/EWG and 93/68/EWG:
Product
Solar Inverter
Manufacture
Sunways AG, Photovoltaic Technology
Macairestr. 3 - 5, D - 78467 Konstanz
Sunways NT 6000, NT 4000, NT 2600
Type
2003-05-15
From date of manufacture
Applied standards
Standard
EN 50178
Title
Electronic equipment for use in power
installations
Edition
1998
Explanation
This product is a component intended for further assembly. Due to the features resulting therefrom, the product cannot initially
meet requirements made of finished products, machines or plants. It must thus be used for mounting / assembly only.
An evaluation of electrical and mechanical safety and of environmental conditions (e.g. extrinsic objects and / or humidity) must
be performed after mounting / assembly in the finished plant.
The EMC characteristics of this product can change in a mounted / assembled state. An EMC check must thus be made for the
PV-System by the manufacturer of the PV-System.
Konstanz, 2004-08-05
City, Date
Roland Burkhardt,CEO
146
Declaration of Conformity as defined by the EMC guideline 89/336/EWG with
revisions 91/263/EWG and 93/68/EWG.
We herewith declare that the following product has been manufactured according to
the requirements outlined in the EG requirements on 89/336/EWG (EMC guideline with
revisions 91/263/EWG)
Product
Solar Inverter
Manufacturer
Sunways AG, Photovoltaic Technology
Macairestr. 3 - 5, D - 78467 Konstanz
Sunways NT 6000, NT 4000, NT 2600
Type
2003-05-15
from date of manufacture
applied standards
Standard
EN 50082-2 (EN 61000-4-2, -4-3, -4-4, -4-6, -4-8)
EN 55014-1; EN 55011; EN 61000-3-2;
EN 61000-3-3; E DIN VDE 0126
Explanation
Maintaining the EMC guideline assumes an EMC adapted installation of the component within the plant or the machine.
Please pay attention to the installation notes of the technical specifications. Tests were carried out using a typical construction in
a test assembly that conforms with the stands. The legal requirements with regard to resistance to interference and to emission
of interference, limit values and standards are outlined in the above mentioned documentation.
These Sunways products are intended for installation into a PV-System. The test results are not applicable to every installed state
in every PV-System. This declaration therefore does not guarantee the EMC characteristics of the end product.
Konstanz, 2004-08-05
147
City, Date
Roland Burkhardt,CEO
EN
Declaration of Conformity of
nominal power and maximum output power
of solar inverters.
Product
Solar Inverter
Manufacturer
Sunways AG, Photovoltaic Technology
Type Sunways
Macairestr. 3 - 5, D - 78467 Konstanz
NT 6000
NT 4000
NT 2600
Nominal power SN
4,6 kVA
3,3 kVA
2,2 kVA
Maximum output power Smax10Min
5 kVA
3,3 kVA
2,2 kVA
Smax10Min / SN
1,08
1
1
Explanation
The maximum output power of the solar inverter has to be declarated as a max. 10 minute average.
Konstanz, 2004-08-05
Ort, Datum
Roland Burkhardt,CEO
148
Declaration of Conformity as defined by the guidelines for connection
and grid feeding in parallel of in-plant generation on low-voltage-guidelines
(VDEW 4. Edition 2001).
We herewith declare that the following product has been manufactured according to
the requirements outlined in the guidelines for connection and grid feeding in parallel
of in-plant generation on low-voltage-guidelines:
Product
Solar Inverter
Manufacturer
Sunways AG, Photovoltaic Technology
Macairestr. 3 - 5, D - 78467 Konstanz
Type
Sunways NT 6000, NT 4000, NT 2600
From date of manufacture
2003-05-15
Applied standard
Standard
Title
In-plant generation on low-voltageguidelines
Edition
4. Edition 2001
Explanation
The NT series of solar inverters from Sunways are monophase inverters that are not capable of isolated operation. They are
equipped with a voltage monitor and three phase monitoring of the line voltage for undervoltage in accordance with section
2.4.2 of the VDEW Guideline (4th edition 2001). A constantly accessible isolation point is therefore not required (see section
2.1.2 Switching point with isolating function). Observation of the cut-off values of the threephase undervoltage protection
is undertaken by means of a routine check test on each device
Konstanz, 2004-08-05
149
City, Date
Roland Burkhardt,CEO
EN
General exclusion of liability
All rights reserved. © Sunways AG
Although the accuracy and completeness
The products specified in the title are
of the information contained in these
copyright-protected and are sold with
instructions have been checked with the
licences. No part of this document may
utmost care, no liability can be accepted
be reproduced in any form, without prior
for errors or omissions.
written permission of Sunways AG and
· Sunways AG reserves the right to modify
the Sunways licensors.
the hardware and software features
described here at any time, without
prior notice.
Registered trademarks
· These instructions may not be duplicated, passed on, copied or translated in
Sunways NT 2600, NT 4000 and NT 6000
to other languages, either in whole or
and the Sunways logo are registered
in part, in any form or by any means,
trademarks of Sunways AG, Constance.
without prior written permission of
Sunways AG.
· Sunways AG does not provide any war-
HERIC® is a registered trademark of
Fraunhofer, Munich.
ranty for damages due to defective or
lost data, incorrect operation or malfunctioning of the solar inverter, the
software, additional equipment or PCs.
150
Concept and design: Denklabor Kommunikationsbüro GmbH, Lucerne/Switzerland
Photovoltaic Technology
Macairestraße 3 - 5
D - 7 8 4 6 7 Konstanz
Telefon + 49 7531 996770
Fax + 49 7531 996774 4 4
E-Mail info @ sunways.de
www. sunways.de
9-1-03-0-0 Version 03/05
Sunways AG